问题
解答题
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答案
(1)7x-36=27,
7x+36-36=27+36,
7x=63,
7x÷7=63÷7,
x=9;
(2)8.9x+4.6x=8.1,
13.5x=8.1,
13.5x÷13.5=8.1÷13.5,
x=0.6;
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(1)7x-36=27,
7x+36-36=27+36,
7x=63,
7x÷7=63÷7,
x=9;
(2)8.9x+4.6x=8.1,
13.5x=8.1,
13.5x÷13.5=8.1÷13.5,
x=0.6;